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Hardware Reference Manual
Pinout specification of J8 is given below,
Pin Number
J8.1
VCC_1V8
J8.2
VCC_3V3
J8.3
GND
J8.4
GND
J8.5
GND
J8.6
GND
J8.7
I2C_SCL
J8.8
I2C_SDA
J8.9
LPI_I2C_3_SDA
J8.10
LPI_UART_2_RX
J8.11
LPI_I2C_3_SCL
J8.12
LPI_GPIO26_EXTR1
J8.13
LPI_UART_2_TX
J8.14
HDMI_MI2S_3_SCK
J8.15
HDMI_MI2S_3_WS
J8.16
LPI_GPIO27_EXTR2
J8.17
LPI_GPIO29_EXTR4
J8.18
LPI_GPIO28_EXTR3
J8.19
HDMI_MI2S_3_D1
J8.20
HDMI_MI2S_3_D0
Version 1.0
Figure 33 – IO Card Expansion Header (J8)
Net Name
Table 31: IO Card Expansion Header (20) Pinout
Pin Function
1.8V Supply
3.3V Supply
Ground
Ground
Ground
Ground
I2C Clock
I2C Data
I2C – 3 Data
UART-2 receive
I2C – 3 Clock
GPIO -26 Pin
UART-2 transmit
I2C – 3 Clock
HDMI I2S 3 Word Sync Clock
GPIO -27 Pin
GPIO -29 Pin
GPIO -28 Pin
HDMI I2S 3 Data 1 Signal
HDMI I2S 3 Data 0 Signal
- 66 -
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